Home / 30,935.06-42,690.50-16,787.90

Finding the Fourth Proportional to 30,935.06, 42,690.50 and 16,787.90

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Solution

The fourth proportional to 30,935.06, 42,690.50 and 16,787.90 is: 23,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.06 : 42,690.50 = 16,787.90 : x
  2. Step 2: Convert to fraction form
    30,935.06/42,690.50 = 16,787.90/x
  3. Step 3: Cross multiply
    30,935.06x = 42,690.50 × 16,787.90
  4. Step 4: Simplify right side
    30,935.06x = 716,683,844.95
  5. Step 5: Solve for x
    x = 716,683,844.95/30,935.06
  6. Step 6: Final answer
    x = 23,167.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.